Raw 8 MB BIOS image for the Lenovo Yoga 910-13IKB, built on LCFC board NM-A901, with CYG50 in the name likely being the board project code. LCFC, the Lenovo-owned ODM, numbers its boards in the NM-xxxx format. The dump is meant for writing directly to the SPI flash chip with a programmer such as a CH341A when the laptop will not boot. The 8 MB size should match the chip capacity. Back up the original contents first, since serial and system data may need transferring to the new image.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →